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Surf Forecasts:
Mavericks surfForecast / CAL – San Mateo / USA
48hr Weather and Surf, issued 10 am Thursday 18 Sep 2025 PDT
How big are the waves at Mavericks today?
The current surf forecast for Mavericks at 12PM is: 1.7m 10s primary swell from a West-northwest direction and 0.6m 15s secondary swell from a South-southwest direction (forecast issued at 10:00am September 18). The wind direction is predicted to be onshore.
| Time (PDT) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (18 Sep) | 5ft (1.6m) | 9s |
| Afternoon (18 Sep) | 5.5ft (1.7m) | 10s |
| Evening (18 Sep) | 5ft (1.5m) | 10s |
Table - waves today at Mavericks. (Swell directed towards the surf break)
Thursday 18 | Friday 19 | Saturday 20 | Sun 21 | |||||||||||||||||||||
| 8 AM | 11 AM | 2 PM | 5 PM | 8 PM | 11 PM | 2 AM | 5 AM | 8 AM | 11 AM | 2 PM | 5 PM | 8 PM | 11 PM | 2 AM | 5 AM | 8 AM | 11 AM | 2 PM | 5 PM | 8 PM | 11 PM | 2 AM | 5 AM | |
Rating (10 max) | ||||||||||||||||||||||||
Swell Height Map |    |    |    |    | ||||||||||||||||||||
| Wave Height (m) & direction (?) | ||||||||||||||||||||||||
| Period(s) (?) | 9 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 11 | 10 | 10 | 10 | 10 | 10 | 14 | 14 | 10 | 10 | 10 | 9 | 9 | 9 | 10 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 360 | 550 | 584 | 596 | 543 | 404 | 411 | 358 | 316 | 322 | 246 | 194 | 186 | 148 | 132 | 123 | 121 | 109 | 109 | 103 | 98 | 98 | 100 | 87 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | on | on | cross- on | cross- on | on | glass | cross- on | glass | glass | glass | cross- on | on | on | cross- on | glass | glass | glass | on | on | cross- on | cross- on | cross- on | cross- on | on |
High Tide / height (m) | 9:46AM 1.52 | 8:51PM 1.73 | 10:19AM 1.57 | 9:42PM 1.70 | 10:49AM 1.60 | 10:29PM 1.65 | ||||||||||||||||||
Low Tide / height (m) | 3:06PM 0.70 | 3:42AM 0.00 | 3:52PM 0.57 | 4:18AM 0.08 | 4:33PM 0.45 | 4:50AM 0.18 | ||||||||||||||||||
Thursday 18 | Friday 19 | Saturday 20 | Sun 21 | |||||||||||||||||||||
| Sunrise | 6:54 | - | - | - | - | - | - | - | 6:54 | - | - | - | - | - | - | - | 6:54 | - | - | - | - | - | - | - |
| Sunset | - | - | - | 7:13 | - | - | - | - | - | - | - | 7:12 | - | - | - | - | - | - | - | 7:09 | - | - | - | - |
 |  | | |  | |  | | | | |  |  | | | | | | | | | | | | |
Rain (mm) | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
| Temp. °C | 15 | 16 | 17 | 16 | 15 | 15 | 15 | 15 | 15 | 16 | 17 | 17 | 15 | 16 | 15 | 15 | 16 | 18 | 18 | 17 | 16 | 15 | 15 | 15 |
| Feels °C (?) | 15 | 15 | 16 | 15 | 15 | 15 | 15 | 16 | 16 | 16 | 16 | 17 | 15 | 16 | 15 | 15 | 16 | 17 | 16 | 15 | 15 | 14 | 15 | 15 |
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Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)- Wind Speed (km/h)
Recent Eyeball Surf Reports for CAL - San Mateo
The wind is still cross-off at Mavericks (light winds from the SSE at Half Moon Bay Airport (California) 2 km from Mavericks). 2.1m 10s swell from the WNW with a 0.5m 14s groundswell from the SSW. 2 swells combining to make bigger set waves.
1 h 16 min ago
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